Lines Matching +full:usb +full:- +full:glue
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2005-2007 by Texas Instruments
20 #include <linux/dma-mapping.h>
24 #include <linux/usb/musb.h>
41 #define glue_to_musb(g) platform_get_drvdata(g->musb)
50 l = musb_readl(musb->mregs, OTG_FORCESTDBY); in omap2430_low_level_exit()
52 musb_writel(musb->mregs, OTG_FORCESTDBY, l); in omap2430_low_level_exit()
59 l = musb_readl(musb->mregs, OTG_FORCESTDBY); in omap2430_low_level_init()
61 musb_writel(musb->mregs, OTG_FORCESTDBY, l); in omap2430_low_level_init()
66 struct omap2430_glue *glue = _glue; in omap2430_musb_mailbox() local
68 if (!glue) { in omap2430_musb_mailbox()
70 return -EPROBE_DEFER; in omap2430_musb_mailbox()
72 glue->status = status; in omap2430_musb_mailbox()
74 if (!glue_to_musb(glue)) { in omap2430_musb_mailbox()
76 return -EPROBE_DEFER; in omap2430_musb_mailbox()
79 schedule_work(&glue->omap_musb_mailbox_work); in omap2430_musb_mailbox()
88 * Note that we're skipping A_WAIT_VFALL -> A_IDLE and jumping right to B_IDLE
91 static void omap_musb_set_mailbox(struct omap2430_glue *glue) in omap_musb_set_mailbox() argument
93 struct musb *musb = glue_to_musb(glue); in omap_musb_set_mailbox()
96 pm_runtime_get_sync(musb->controller); in omap_musb_set_mailbox()
98 dev_dbg(musb->controller, "VBUS %s, devctl %02x\n", in omap_musb_set_mailbox()
99 usb_otg_state_string(musb->xceiv->otg->state), in omap_musb_set_mailbox()
100 musb_readb(musb->mregs, MUSB_DEVCTL)); in omap_musb_set_mailbox()
102 switch (glue->status) { in omap_musb_set_mailbox()
104 dev_dbg(musb->controller, "ID GND\n"); in omap_musb_set_mailbox()
105 switch (musb->xceiv->otg->state) { in omap_musb_set_mailbox()
110 musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE; in omap_musb_set_mailbox()
119 otg_set_vbus(musb->xceiv->otg, 1); in omap_musb_set_mailbox()
122 musb->xceiv->otg->state = OTG_STATE_A_IDLE; in omap_musb_set_mailbox()
123 musb->xceiv->last_event = USB_EVENT_ID; in omap_musb_set_mailbox()
124 if (musb->gadget_driver) { in omap_musb_set_mailbox()
125 omap_control_usb_set_mode(glue->control_otghs, in omap_musb_set_mailbox()
127 otg_set_vbus(musb->xceiv->otg, 1); in omap_musb_set_mailbox()
134 dev_dbg(musb->controller, "VBUS Connect\n"); in omap_musb_set_mailbox()
136 musb->xceiv->otg->state = OTG_STATE_B_IDLE; in omap_musb_set_mailbox()
137 musb->xceiv->last_event = USB_EVENT_VBUS; in omap_musb_set_mailbox()
138 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); in omap_musb_set_mailbox()
143 dev_dbg(musb->controller, "VBUS Disconnect\n"); in omap_musb_set_mailbox()
145 musb->xceiv->last_event = USB_EVENT_NONE; in omap_musb_set_mailbox()
147 otg_set_vbus(musb->xceiv->otg, 0); in omap_musb_set_mailbox()
148 omap_control_usb_set_mode(glue->control_otghs, in omap_musb_set_mailbox()
152 dev_dbg(musb->controller, "ID float\n"); in omap_musb_set_mailbox()
154 pm_runtime_mark_last_busy(musb->controller); in omap_musb_set_mailbox()
155 pm_runtime_put_autosuspend(musb->controller); in omap_musb_set_mailbox()
156 atomic_notifier_call_chain(&musb->xceiv->notifier, in omap_musb_set_mailbox()
157 musb->xceiv->last_event, NULL); in omap_musb_set_mailbox()
163 struct omap2430_glue *glue = container_of(mailbox_work, in omap_musb_mailbox_work() local
166 omap_musb_set_mailbox(glue); in omap_musb_mailbox_work()
175 spin_lock_irqsave(&musb->lock, flags); in omap2430_musb_interrupt()
177 musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); in omap2430_musb_interrupt()
178 musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); in omap2430_musb_interrupt()
179 musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); in omap2430_musb_interrupt()
181 if (musb->int_usb || musb->int_tx || musb->int_rx) in omap2430_musb_interrupt()
184 spin_unlock_irqrestore(&musb->lock, flags); in omap2430_musb_interrupt()
193 struct device *dev = musb->controller; in omap2430_musb_init()
195 struct omap_musb_board_data *data = plat->board_data; in omap2430_musb_init()
198 * up through ULPI. TWL4030-family PMICs include one, in omap2430_musb_init()
201 musb->phy = devm_phy_get(dev->parent, "usb2-phy"); in omap2430_musb_init()
203 /* We can't totally remove musb->xceiv as of now because in omap2430_musb_init()
209 musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, "usb-phy", 0); in omap2430_musb_init()
211 if (IS_ERR(musb->xceiv)) { in omap2430_musb_init()
212 status = PTR_ERR(musb->xceiv); in omap2430_musb_init()
214 if (status == -ENXIO) in omap2430_musb_init()
217 dev_dbg(dev, "HS USB OTG: no transceiver configured\n"); in omap2430_musb_init()
218 return -EPROBE_DEFER; in omap2430_musb_init()
221 if (IS_ERR(musb->phy)) { in omap2430_musb_init()
222 dev_err(dev, "HS USB OTG: no PHY configured\n"); in omap2430_musb_init()
223 return PTR_ERR(musb->phy); in omap2430_musb_init()
225 musb->isr = omap2430_musb_interrupt; in omap2430_musb_init()
226 phy_init(musb->phy); in omap2430_musb_init()
227 phy_power_on(musb->phy); in omap2430_musb_init()
229 l = musb_readl(musb->mregs, OTG_INTERFSEL); in omap2430_musb_init()
231 if (data->interface_type == MUSB_INTERFACE_UTMI) { in omap2430_musb_init()
239 musb_writel(musb->mregs, OTG_INTERFSEL, l); in omap2430_musb_init()
241 dev_dbg(dev, "HS USB OTG: revision 0x%x, sysconfig 0x%02x, " in omap2430_musb_init()
243 musb_readl(musb->mregs, OTG_REVISION), in omap2430_musb_init()
244 musb_readl(musb->mregs, OTG_SYSCONFIG), in omap2430_musb_init()
245 musb_readl(musb->mregs, OTG_SYSSTATUS), in omap2430_musb_init()
246 musb_readl(musb->mregs, OTG_INTERFSEL), in omap2430_musb_init()
247 musb_readl(musb->mregs, OTG_SIMENABLE)); in omap2430_musb_init()
254 struct device *dev = musb->controller; in omap2430_musb_enable()
255 struct omap2430_glue *glue = dev_get_drvdata(dev->parent); in omap2430_musb_enable() local
257 if (glue->status == MUSB_UNKNOWN) in omap2430_musb_enable()
258 glue->status = MUSB_VBUS_OFF; in omap2430_musb_enable()
259 omap_musb_set_mailbox(glue); in omap2430_musb_enable()
264 struct device *dev = musb->controller; in omap2430_musb_disable()
265 struct omap2430_glue *glue = dev_get_drvdata(dev->parent); in omap2430_musb_disable() local
267 if (glue->status != MUSB_UNKNOWN) in omap2430_musb_disable()
268 omap_control_usb_set_mode(glue->control_otghs, in omap2430_musb_disable()
274 struct device *dev = musb->controller; in omap2430_musb_exit()
275 struct omap2430_glue *glue = dev_get_drvdata(dev->parent); in omap2430_musb_exit() local
278 phy_power_off(musb->phy); in omap2430_musb_exit()
279 phy_exit(musb->phy); in omap2430_musb_exit()
280 musb->phy = NULL; in omap2430_musb_exit()
281 cancel_work_sync(&glue->omap_musb_mailbox_work); in omap2430_musb_exit()
305 struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); in omap2430_probe()
308 struct omap2430_glue *glue; in omap2430_probe() local
309 struct device_node *np = pdev->dev.of_node; in omap2430_probe()
313 int ret = -ENOMEM, val; in omap2430_probe()
317 return -ENODEV; in omap2430_probe()
319 glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); in omap2430_probe()
320 if (!glue) in omap2430_probe()
323 musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); in omap2430_probe()
325 dev_err(&pdev->dev, "failed to allocate musb device\n"); in omap2430_probe()
329 musb->dev.parent = &pdev->dev; in omap2430_probe()
330 musb->dev.dma_mask = &omap2430_dmamask; in omap2430_probe()
331 musb->dev.coherent_dma_mask = omap2430_dmamask; in omap2430_probe()
338 dev_warn(&pdev->dev, "please update to probe with ti-sysc\n"); in omap2430_probe()
341 device_set_of_node_from_dev(&musb->dev, &pdev->dev); in omap2430_probe()
345 glue->dev = &pdev->dev; in omap2430_probe()
346 glue->musb = musb; in omap2430_probe()
347 glue->status = MUSB_UNKNOWN; in omap2430_probe()
348 glue->control_otghs = ERR_PTR(-ENODEV); in omap2430_probe()
350 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); in omap2430_probe()
354 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in omap2430_probe()
358 config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); in omap2430_probe()
362 of_property_read_u32(np, "mode", (u32 *)&pdata->mode); in omap2430_probe()
363 of_property_read_u32(np, "interface-type", in omap2430_probe()
364 (u32 *)&data->interface_type); in omap2430_probe()
365 of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); in omap2430_probe()
366 of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); in omap2430_probe()
367 of_property_read_u32(np, "power", (u32 *)&pdata->power); in omap2430_probe()
371 config->multipoint = true; in omap2430_probe()
373 pdata->board_data = data; in omap2430_probe()
374 pdata->config = config; in omap2430_probe()
376 control_node = of_parse_phandle(np, "ctrl-module", 0); in omap2430_probe()
381 dev_err(&pdev->dev, "Failed to get control device\n"); in omap2430_probe()
382 ret = -EINVAL; in omap2430_probe()
385 glue->control_otghs = &control_pdev->dev; in omap2430_probe()
388 pdata->platform_ops = &omap2430_ops; in omap2430_probe()
390 platform_set_drvdata(pdev, glue); in omap2430_probe()
396 _glue = glue; in omap2430_probe()
398 INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work); in omap2430_probe()
400 ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources); in omap2430_probe()
402 dev_err(&pdev->dev, "failed to add resources\n"); in omap2430_probe()
415 ret = -EINVAL; in omap2430_probe()
419 musb_res[i].start = res->start; in omap2430_probe()
420 musb_res[i].end = res->end; in omap2430_probe()
421 musb_res[i].flags = res->flags; in omap2430_probe()
422 musb_res[i].name = res->name; in omap2430_probe()
443 dev_err(&pdev->dev, "failed to add IRQ resources\n"); in omap2430_probe()
450 dev_err(&pdev->dev, "failed to add platform_data\n"); in omap2430_probe()
454 pm_runtime_enable(glue->dev); in omap2430_probe()
458 dev_err(&pdev->dev, "failed to register musb device\n"); in omap2430_probe()
465 pm_runtime_disable(glue->dev); in omap2430_probe()
476 struct omap2430_glue *glue = platform_get_drvdata(pdev); in omap2430_remove() local
478 platform_device_unregister(glue->musb); in omap2430_remove()
479 pm_runtime_disable(glue->dev); in omap2430_remove()
486 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_runtime_suspend() local
487 struct musb *musb = glue_to_musb(glue); in omap2430_runtime_suspend()
492 musb->context.otg_interfsel = musb_readl(musb->mregs, in omap2430_runtime_suspend()
497 if (!glue->phy_suspended) { in omap2430_runtime_suspend()
498 phy_power_off(musb->phy); in omap2430_runtime_suspend()
499 phy_exit(musb->phy); in omap2430_runtime_suspend()
502 glue->is_runtime_suspended = 1; in omap2430_runtime_suspend()
509 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_runtime_resume() local
510 struct musb *musb = glue_to_musb(glue); in omap2430_runtime_resume()
515 if (!glue->phy_suspended) { in omap2430_runtime_resume()
516 phy_init(musb->phy); in omap2430_runtime_resume()
517 phy_power_on(musb->phy); in omap2430_runtime_resume()
521 musb_writel(musb->mregs, OTG_INTERFSEL, in omap2430_runtime_resume()
522 musb->context.otg_interfsel); in omap2430_runtime_resume()
527 glue->is_runtime_suspended = 0; in omap2430_runtime_resume()
532 /* I2C and SPI PHYs need to be suspended before the glue layer */
535 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_suspend() local
536 struct musb *musb = glue_to_musb(glue); in omap2430_suspend()
538 phy_power_off(musb->phy); in omap2430_suspend()
539 phy_exit(musb->phy); in omap2430_suspend()
540 glue->phy_suspended = 1; in omap2430_suspend()
545 /* Glue layer needs to be suspended after musb_suspend() */
548 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_suspend_late() local
550 if (glue->is_runtime_suspended) in omap2430_suspend_late()
553 glue->needs_resume = 1; in omap2430_suspend_late()
560 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_resume_early() local
562 if (!glue->needs_resume) in omap2430_resume_early()
565 glue->needs_resume = 0; in omap2430_resume_early()
572 struct omap2430_glue *glue = dev_get_drvdata(dev); in omap2430_resume() local
573 struct musb *musb = glue_to_musb(glue); in omap2430_resume()
575 phy_init(musb->phy); in omap2430_resume()
576 phy_power_on(musb->phy); in omap2430_resume()
577 glue->phy_suspended = 0; in omap2430_resume()
599 .compatible = "ti,omap4-musb"
602 .compatible = "ti,omap3-musb"
613 .name = "musb-omap2430",
621 MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer");